x − n u mb er x − 15 = 4 ( − x ) x − 15 = − 4 x ∣ s u b t r a c t x − 15 = − 5 x ∣ d i v i d e b y − 5 x = 3 N u mb er i s e q u a l t o 3.
The student is asked to find a number that is 15 more than 4 times its opposite. To solve this, let's assign the number the variable x. The opposite of x is -x. So, according to the problem, x must satisfy the equation x = 4 * (-x) + 15. By distributing the 4, we get x = -4x + 15. To find the value of x, we add 4x to both sides to get 5x = 15. Dividing both sides by 5, we find that x = 3. Thus, the number we are looking for is 3. To check our work, we calculate 4 times its opposite (which is -3) and add 15: 4 * (-3) + 15 = -12 + 15 = 3, which matches our found number.
The number that is 15 more than 4 times its opposite is 3. This was found by setting up and solving the equation x = 4 ( − x ) + 15 . Verification of the result shows that substituting back gives consistent results with the original statement.
;
Pembahasan Berikut ini yang termasuk bentuk nyata menjaga NKRI adalah menghargai, menghormati perbedaan yang ada. Karena dengan hal ini adalah salah satu bukti nyata kita dalam menjaga NKRI agar tidak terjadi keributan, terpecah belah dan lain-lain.